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Related Experiment Video

Updated: Jul 12, 2026

Assessment of Social Cognition in Non-human Primates Using a Network of Computerized Automated Learning Device (ALDM) Test Systems

Assessment of Social Cognition in Non-human Primates Using a Network of Computerized Automated Learning Device (ALDM) Test Systems

Published on: May 5, 2015

Reading and sentence completion by a chimpanzee (pan).

D M Rumbaugh, T V Gill, E C von Glasersfeld

Science (New York, N.Y.)

|November 16, 1973

Summary

A young chimpanzee learned to read word-characters and complete sentences after computer-based language training. This demonstrates advanced cognitive abilities in primates regarding language comprehension and sequential understanding.

Area of Science:

Primate Cognition
Animal Language Studies
Comparative Psychology

Background:

Understanding the cognitive capacities of non-human primates is crucial for evolutionary psychology.
Investigating animal language acquisition provides insights into the development of communication systems.

Purpose of the Study:

To assess the language comprehension and reading abilities of a young chimpanzee.
To evaluate the effectiveness of computer-controlled language training in primates.

Main Methods:

A 2.5-year-old chimpanzee underwent 6 months of computer-controlled language training.
The chimpanzee was trained to read projected word-characters representing sentence beginnings.

Main Results:

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The chimpanzee demonstrated proficient reading of word-characters.

The chimpanzee could correctly complete sentences based on meaning and serial order, or reject incorrect sequences.

Conclusions:

Computer-controlled training can effectively teach complex language-related skills to chimpanzees.
Chimpanzees exhibit significant potential for understanding sentence structure and meaning.